Provenance-The origin from of something. For forensic science. In forensic drug analysis, this includes the area where a drug could be grown / made and the chemicals used for its preparation.

Quantitative Property-A characteristic of a substance that exists in a range of magnitudes, and can therefore be measured. Measurements of any particular quantitative property are expressed as a specific quantity, referred to as a unit, multiplied by a number. Examples of physical quantities are distance, mass, and time.

Racemic-Equal mixture of optical isomers

Spectra-A reading or printout from a spectrometer.

Spot Test-Forensic Chemistry Term for a presumptive test that changes color.